Laserfiche WebLink
1 1455 McDowell Blvd,North Ste D <br /> a- ) Sequoia Petaluma,CA 94954 <br /> (707)792-1865 <br /> Analytical FAX(707)792-0342 <br /> www.sequoialabs.com <br /> URS Corp-Sacramento Project: Arco Site 5450,Stockton,CA P3I 1175 <br /> 2870 Gateway Oaks Drive Suite 300 Project Number: WR36604 Reported: <br /> Sacramento CA,95833 Project Manager: Vernon P.Elarth 11/21/03 16:39 <br /> Volatile Organic Compounds by EPA Method 8260B-Quality Control <br /> Sequoia Analytical-Petaluma <br /> I <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> I <br /> Batch 3110391-EPA 5030 waters <br /> Blank 3110391-BLKI Pre ared&Analyzed: 11/18/03 <br /> Tert-amyl methyl ether ND 1.0 ugll <br /> Benzene ND 0.50 " <br /> Tert-butyl alcohol ND 20 " <br /> Di-isopropyl ether ND 1.0 " <br /> 1,2-Dibromoethane(EDB) ND 0.50 " <br /> 1,2-Dichloroethane ND 0.50 " <br /> Ethanol ND 100 " <br /> Ethylbenzene ND 0.50 " <br /> Ethyl tert-butyl ether ND 1.0 " <br /> Methyl tent-butyl ether ND 0.50 " <br /> Toluene ND 0.50 " <br /> Xylenes(total) ND 0.50 " <br /> urrogate:Dibromofluoromethane 5.15 115.00 105 84-111 <br /> Surrogate: 1,2-Dichloroethane-d4 5.68 115.00 114 74-135 <br /> Surrogate: Toluene-d8 4.41 115.00 88 84-119 <br /> Surrogate:4-Bromofluorobenzene 5.12 115.00 104 86-119 <br /> Laboratory Control Sample(3110391-BSI) Prepared&Analyzed: 11/18/03 <br /> Tert-amyl methyl ether 5.05 1.0 upfl 5.00 101 70-116 <br /> Benzene 5.40 0.50 5.00 108 81-118 <br /> Tert-butyl alcohol 130 20 " 100 130 62-142 <br /> Di-isopropyl ether 5.91 1.0 5.00 118 71-121 <br /> 1,2-Dibromoethane(EDB) 6.19 0.50 5.00 124 92-117 Q-29 <br /> 1,2-Dichloroethane 5.66 0.50 5.00 113 79-126 <br /> Ethanol 128 100 100 128 65-135 <br /> Ethylbenzene 5.03 0.50 5.00 101 89-122 <br /> Ethyl Cert-butyl ether 5.22 1.0 5.00 104 71-110 <br /> Methyl tert-butyl ether 5.00 0.50 5.00 100 77-123 <br /> Toluene 5.85 0.50 5.00 117 84-119 <br /> Xylenes(total) 15.8 0.50 15.0 105 86-132 <br /> Surrogate:Dibromofluoromethane 5.07 5.00 101 84-122 <br /> Surrogate:1,2-Dichloroethane-d4 5.18 5.00 104 74-135 <br /> Surrogate: Toluene-d8 4.75 5.00 95 84-119 <br /> Surrogate:4-Bromofluoro benzene 4.61 5.00 91 86-119 <br /> Sequoia Analytical-Petaluma The results in this report apply to the samples analyzed in accordance with the chain <br /> • of custody document. Unless otherwise stated,results are reported on a wet weight <br /> basis. This analytical report must be reproduced in its entirety. <br /> Page 8 of 10 <br />